Question about Fedders A7DH45B2A Dehumidifier

2 Answers

Humidifier is freezing up

Our M7DH45B2A humidifier is now freezing up. We purchased it 14 mos. ago and it has worked FINE. Now it freezes up and it's frustrating. The room temp is the same in our basement as it always has been. 66 degrees. I was told that some models will not work properly in temps. less that 65 degrees. But the room temp here HAS NOT changed since we first used the Dehumidifier.

Posted by on

  • 1 more comment 
  • Anonymous Jun 04, 2008

    I have the same freeze-up problem...I assume it must be a small leak or all the coolant would be lost. Is this a problem that can be fixed by trying to patch the leak?


  • daveschevy2 Jun 27, 2008

    I have the same dehumidifier and it does the same thing. but I was able to fix mine. It was not low on refridgerant. There is a temp. sensor clamped to the evaporater coil with a thin metal clip. The clip rusted out and the sensor fell out of position. I used a small stainless steel hose clamp and clamped the sensor back into position. It now works fine

  • Anonymous Nov 11, 2008

    Daveschevy2 hit the nail on the head. I had the exact same freezing up problem. I opened up the case and found the temperature sensor rusted and just hanging by its wire. I used my Dremel tool to clean the rust then I used a piece of wire to tie it back onto the coil in the correct position. Thank you for the fix.

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

I have the same dehumidifier and it does the same thing. but I was able to fix mine. It was not low on refridgerant. There is a temp. sensor clamped to the evaporater coil with a thin metal clip. The clip rusted out and the sensor fell out of position. I used a small stainless steel hose clamp and clamped the sensor back into position. It now works fine

Posted on Jun 27, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,073 Answers

You have a sealed system leak, some have a 1 year sealed system warranty some have a 5 year warranty parts only labor is only 1 year

Posted on Apr 10, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have the Kenmore 14 gallon whole house humdifier. The humidity level only goes up to 30 even though I have it set to 45. I changed the filters,cleaned the unit and tried unplugging but it did not make a...


My suggestion is to get an additional humidifier and run both. It sounds like it is at capacity. This was a cold winter and the additional heating put a large demand on the humidifiers.

Feb 27, 2014 | Kenmore 14 Gallon Humidifier

1 Answer

Is this unit (Maytag M7DH45B2A) only a dehumidifier ..or.. both a dehumidifier and a humidifier?


Hi,
That is a dehumidifier only... humidifiers work on a totally different principle...

heatman101

Jan 04, 2011 | Maytag M7DH45B2A Dehumidifier

1 Answer

Humidifier runs but does not dehumidify! any suggestions? i have cleaned the filter.



Hi,

There are many reasons why a dehumidifier will not work or collect water.


Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier

Dehumidifier is running but no water is in bucket

heatman101

Aug 29, 2010 | Maytag M7DH45B2A Dehumidifier

2 Answers

Dehumidifier freezes up


Hi,
Dehumidifiers2_bing.gif freezing up can be causes by a few different problems.
Here is a tip that I wrote to help people with the freezing dehumidifier2_bing.gif problem....

Dehumidifier is Freezing up and not working
http://www.fixya.com/support/r4662033-dehumidifier_freezing_up_not_working

heatman101

Jul 01, 2010 | Whirlpool Gold AD70USS 70 Pint Per Day...

1 Answer

My dehumitifer freezes up shortly afer being turned on. Why?


This can happen if the Temperature in your room is too low. You can work around it and place a 40 watt bulb near the the inlet of the humidifier to warm up the air a bit. Also if the humidity level in your room is already too low this can cause your dehumidifier to freeze up.

Jun 11, 2010 | Eva-Dry EDV300 Dehumidifier

1 Answer

Humidifier is icing up during operation


Hi,

Here is a tip that I wrote that will help you understand why and what you cando with a dehumidifier that ices up.

Dehumidifier is Freezing up and not working

heatman101

vbn

May 20, 2010 | LG LHD45EL Dehumidifier

1 Answer

Maytag M7DH45B2A freezing problem


Is this a humidifier or dehumidifier?

Nov 15, 2007 | Maytag M7DH45B2A Dehumidifier

1 Answer

Missing hose adapter


It might be a problem since these units were made by Fedders for Maytag which is now owned by Whirlpool :inhale: but I found part number FD9520-010 "drain hose". If not, a length of dishwasher drain hose with a male garden hose fitting on one end would work fine

Aug 15, 2007 | Maytag M7DH45B2A Dehumidifier

1 Answer

Humidifier Runs but no water collected


Are you talking about a dehumidifier or a humidifier. If you are talking about a dehumidifier, it works by blowing air across a cooling coil causing condensation and the water will drip and pool. The cooling is caused by a compressor working like refrigerator, but using the effect to dehumidify. To check if the cooling coil is working there will be a metal can like in it with tubes in and out. One of the tubes should be warm(input) and the other tube should be cold, if not your compressor is not working. If freezing up, low freon. Check to see if the compressor shuts off very quickly, that would be too much freon. This is not user servicable. Now a humidifier works several different ways. One way is a fan with cloth belts rolling through water using evaporation to humidify. Another way is for a circular fan like on a motor to turn. It has a hollow piece into the water. It picks up water and then through centrifugal force aerates. One way is for a sonic humidifier. All the types have a problem with eventual calcification or mineral build up in the water handling paths. Lime-away or Concentrated Lemon Juice will dissolve this. The lemon juice is the most fun. It will turn your toilet bowl white and also remove rust stains from laundry...

May 01, 2007 | Maytag M7DH65B2A Dehumidifier

1 Answer

Humidifier is very hot


doubt if there is a fault. if something gets cold ie freezing section then something else gets hot

Mar 18, 2007 | Fedders RDG40 Dehumidifier

Not finding what you are looking for?
Fedders A7DH45B2A Dehumidifier Logo

506 people viewed this question

Ask a Question

Usually answered in minutes!

Top Fedders Dehumidifiers Experts

Bill Long

Level 3 Expert

577 Answers

Steve

Level 3 Expert

3287 Answers

kakima

Level 3 Expert

96518 Answers

Are you a Fedders Dehumidifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...